A method and system for providing extension phone service within a mobile radio communication system. The mobile radio communication system includes a home location register (HLR), a plurality of mobile switching centers (MSCs), and a plurality of mobile stations. A single subscriber number is assigned...http://www.google.fr/patents/US5699407?utm_source=gb-gplus-shareBrevet US5699407 - Method and system for implementing extension phone within a cellular radio telecommunications network
Method and system for implementing extension phone within a cellular radio ...
